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 Technique

# Apical Gauging

## Definition

Estimating the diameter of the apical canal at working length, often by checking the first file that binds. It guides the choice of final apical size and helps confirm adequate apical preparation.

## Clinical Guides

[Canal Preparation](https://endo-guide.app/canal-preparation)[Working Length Determination](https://endo-guide.app/working-length)

## Related Terms

[Pecking Motion](https://endo-guide.app/glossary/pecking-motion)[Brushing Motion](https://endo-guide.app/glossary/brushing-motion)[Watch-Winding](https://endo-guide.app/glossary/watch-winding)[Recapitulation](https://endo-guide.app/glossary/recapitulation)[Passive Ultrasonic Irrigation (PUI)](https://endo-guide.app/glossary/pui)[Single-Cone Obturation](https://endo-guide.app/glossary/single-cone)

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